Results 11 to 20 of about 13,143 (213)
COMPUTATIONAL COMPLEX PREDATOR-PREY DYNAMICS [PDF]
, 2017 ABSTRACTTwo species predator-prey with stage structure of mature and immature mathematical models are studied over the last few decades.Xin-an Zhang et alstudied a mathematical model with stage structure of two species in 2010. In this article, an attempt has been made to comprehend the coupled predator-prey dynamics with mature-immature stage ...
Chaudhuri, Adwitiya, Hassan, SK. Sarif
openaire +2 more sources
Global dynamics of a predator–prey model
Journal of Mathematical Analysis and Applications, 2010 AbstractThis paper deals with the dynamics of a predator–prey model with Hassell–Varley–Holling functional response. First, we show that the predator coexists with prey if and only if predator's growth ability is greater than its death rate. Second, using a blow-up technique, we prove that the origin equilibrium point is repelling and extinction of ...
Yijun Lou, Xiuxiang Liu
openaire +2 more sources
Dynamics of a Discrete Predator-Prey System
Procedia Engineering, 2012 AbstractThis paper discusses a discrete predator-prey system with Beddington-DeAngelis function response. Firstly, sufficient conditions are obtained for the permanence of the system. Furthermore, by constructing a suitable Lyapunov function, some sufficient conditions which guarantee the global attractivity of positive equilibrium of the system are ...
Qibin Fang, Meiyu Cao, Xiaoping Li
openaire +2 more sources
The anatomy of predator–prey dynamics in a changing climate [PDF]
Journal of Animal Ecology, 2007 Summary Humans are increasingly influencing global climate and regional predator assemblages, yet a mechanistic understanding of how climate and predation interact to affect fluctuations in prey populations is currently lacking. Here we develop a modelling framework to explore the effects of different predation strategies on the response of age ...
Christopher C. Wilmers +2 more
openaire +3 more sources
Positive symplectic integrators for predator-prey dynamics
Discrete & Continuous Dynamical Systems - B, 2018 We propose novel positive numerical integrators for approximating predator-prey models. The schemes are based on suitable symplectic procedures applied to the dynamical system written in terms of the log transformation of the original variables. Even if this approach is not new when dealing with Hamiltonian systems, it is of particular interest in ...
FDiele, CMarangi
openaire +3 more sources
On Dynamics and Invariant Sets in Predator-Prey Maps
, 2020 A multitude of physical, chemical, or biological systems evolving in discrete time can be modelled and studied using difference equations (or iterative maps). Here we discuss local and global dynamics for a predator-prey two-dimensional map. The system displays an enormous richness of dynamics including extinctions, co- extinctions, and both ordered ...
Lázaro Ochoa, José Tomás +3 more
openaire +5 more sources
Predator-Prey Dynamics with Disease in the Prey
Mathematical Biosciences and Engineering, 2005 The Holling-Tanner model for predator-prey systems is adapted to incorporate the spread of disease in the prey. The analysis of the dynamics centers on bifurcation diagrams in which the disease transmission rate is the primary parameter. The ecologically reasonable assumption that the diseased prey are easier to catch enables tractable analytic results
openaire +4 more sources
Ternary Synergy in Layered Double Hydroxides for Efficient and Stable Nitrate Reduction
Advanced Functional Materials, EarlyView.Ternary CuZnFe LDH enables efficient electrocatalytic nitrate‐to‐ammonia conversion via controlled in situ reconstruction: zinc leaching creates porous active sites, copper reduced to metallic copper, while iron oxide keeps stable. Synergistic Cu‐Fe redox coupling drives tandem catalysis (nitrate→nitrite→NH3), achieving 95% Faraday efficiency and ...
Jiaqian Kang +9 more
wiley +1 more source
On the Extinction–Free Stabilization of Predator-Prey Dynamics
IEEE Control Systems Letters, 2020 Scientists have long been attracted to mechanisms surrounding the predator-prey system. The Lotka-Volterra (LV) model is the most popular formalism used to investigate the dynamics of this system. LV equations present non-linear dynamics that exhibit periodic oscillations in both prey and predator populations.
Federico Califano +4 more
openaire +2 more sources
A Bio‐Inspired Perspective on Materials Sustainability
Advanced Materials, EarlyView.This perspective discusses natural materials as inspiration for sustainable engineering designs and the processing of materials. First, circularity, longevity, parsimony, and activity are presented as essential material paradigms. The perspective then uses many examples of natural and technical materials to introduce principles such as oligo ...
Wolfgang Wagermaier +2 more
wiley +1 more source